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arenaapi.js
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arenaapi.js
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var https = require('https');
var util = require('util');
var url = require('url');
exports.url = '';
exports.log = false; // no console log by default
exports.colorOutput = process.stdout.isTTY; // color if not directed to file
exports.sessionID = null; // set at login, used for others, back to null at logut
var showResult = function(info, statusCode, errors, result) {
var inspectOptions = {depth: 4, colors: exports.colorOutput};
if (errors != null) {
var ansiRed = exports.colorOutput ? ['\x1B[31m', '\x1B[39m'] : ['', ''];
console.log('->%s %d %s ERRORS%s\n%s', ansiRed[0], statusCode, info, ansiRed[1], util.inspect(errors, inspectOptions));
} else {
var ansiBlue = exports.colorOutput ? ['\x1B[34m', '\x1B[39m'] : ['', ''];
console.log('->%s %d %s RESULT%s\n%s', ansiBlue[0], statusCode, info, ansiBlue[1], util.inspect(result, inspectOptions));
}
};
var apiCall = function(name, method, urlPart, args, body, callback) {
var headers = {};
if (args != null) {
var query = []; // these are the query parameters
for (var key in args) {
var k = urlPart.indexOf('<' + key + '>');
if (k != -1)
urlPart = urlPart.substring(0, k) + encodeURIComponent(args[key]) + urlPart.substring(k + 2 + key.length);
else
query.push(key + '=' + encodeURIComponent(args[key]));
}
if (query.length > 0)
urlPart += '?' + query.join('&');
}
var bodyBuffer = null; // REST body for POST calls
if (body != null) {
if (Buffer.isBuffer(body)) {
bodyBuffer = body;
headers['Content-Type'] = 'application/octet-stream';
} else if (typeof body == 'string') {
bodyBuffer = new Buffer(body, 'utf8');
headers['Content-Type'] = 'text/plain';
} else {
bodyBuffer = new Buffer(JSON.stringify(body), 'utf8');
headers['Content-Type'] = 'application/json';
}
headers['Content-Length'] = bodyBuffer.length;
}
if (exports.sessionID != null)
headers['Cookie'] = 'arena_session_id=' + exports.sessionID; //needed for all but a login
var urlObj = url.parse(exports.url);
var options = {
hostname: urlObj.hostname,
port: urlObj.port,
path: urlObj.path + urlPart,
method: method,
headers: headers,
rejectUnauthorized: false // no SSL cert required
};
var req = https.request(options, function(res) {
var buffers = [];
res.on('data', function(data) { buffers.push(data); });
res.on('end', function() {
var buffer = buffers.length == 0 ? null : Buffer.concat(buffers);
var bufferJSON = null;
if (buffer != null && res.headers['content-type'].indexOf('application/json') != -1) { // node lowercases headers
try {
bufferJSON = JSON.parse(buffer.toString());
} catch(e) {}
}
var errors = null;
var result = null;
if (res.statusCode >= 200 && res.statusCode < 300) {
result = bufferJSON != null ? bufferJSON : buffer;
if ('set-cookie' in res.headers && result != null && typeof result == 'object' && 'arenaSessionId' in result) // is a login
exports.sessionID = result.arenaSessionId;
} else {
errors = bufferJSON != null ? bufferJSON : {status: res.statusCode, errors: [{code: 9999, message: 'API RESPONSE ERROR', info: {method: method, url: options.path, args: args, headers: res.headers, result: buffer != null ? buffer.toString() : null}}]}; // format like API error
}
if (exports.log)
showResult(options.method + ' ' + options.path + ' ' + name, res.statusCode, errors, result);
if (errors == null && options.path.indexOf('/logout') != -1)
exports.sessionID = null; // export so api callers can test if session is valid (may have expired though)
callback(res.statusCode, errors, result);
});
});
req.on('error', function(e) {
var errors = {status: 0, errors: [{code: 9998, message: 'API REQUEST ERROR: ' + e.message, info: {method: method, url: options.path, args: args}}]}; // format like API error
if (exports.log)
showResult(options.method + ' ' + options.path + ' ' + name, 0, errors, null);
callback(0, errors, null);
});
if (bodyBuffer != null)
req.write(bodyBuffer);
req.end();
};
exports.apis = [
{name: 'login', method: 'POST', urlPart: 'login'},
{name: 'logout', method: 'GET', urlPart: 'logout'},
{name: 'getItemNumberFormats', method: 'GET', urlPart: 'item/numberformats'},
{name: 'getItemCategories', method: 'GET', urlPart: 'item/categories'},
{name: 'getFileCategories', method: 'GET', urlPart: 'file/categories'},
{name: 'getItemAttributes', method: 'GET', urlPart: 'item/attributes'},
{name: 'getItemNumberFormat', method: 'GET', urlPart: 'item/numberformats/<guid>'},
{name: 'getItemRevisions', method: 'GET', urlPart: 'items/<guid>/revisions'},
{name: 'getItemRequirements', method: 'GET', urlPart: 'items/<guid>/requirements'},
{name: 'getItemRelationships', method: 'GET', urlPart: 'items/<guid>/relationships'},
{name: 'getCategoryAttributes', method: 'GET', urlPart: 'item/categories/<guid>/attributes'},
{name: 'getItems', method: 'GET', urlPart: 'items'},
{name: 'getItem', method: 'GET', urlPart: 'items/<guid>'},
{name: 'updateItem', method: 'PUT', urlPart: 'items/<guid>'},
{name: 'createItem', method: 'POST', urlPart: 'items'},
{name: 'deleteItem', method: 'DELETE', urlPart: 'items/<guid>'},
{name: 'getItemBOM', method: 'GET', urlPart: 'items/<guid>/bom'},
{name: 'getItemFiles', method: 'GET', urlPart: 'items/<guid>/files'},
{name: 'getItemFileContent', method: 'GET', urlPart: 'items/<guid>/files/<fileguid>/content'},
{name: 'addItemFile', method: 'POST', urlPart: 'items/<guid>/files'},
{name: 'addItemFileContent', method: 'POST', urlPart: 'items/<guid>/files/<fileguid>/content'},
{name: 'deleteItemFile', method: 'DELETE', urlPart: 'items/<guid>/files/<fileguid>'}
];
exports.apis.forEach(function(api) {
if (api.method == 'POST' || api.method == 'PUT')
exports[api.name] = function(args, body, callback) { apiCall(api.name, api.method, api.urlPart, args, body, callback); };
else
exports[api.name] = function(args, callback) { apiCall(api.name, api.method, api.urlPart, args, null, callback); };
});